Cryptographic perforator



Oct"4 257 W. H., LYMAN CRYPTOGRAPHIC PERFORAIOR Filed-Dec., 11. 1924 2 Sheets-sheet 1 Wwf/W05.'

2 Sheets-Sheet 2 .f5 /W/r/W wx.

Oct. 25, 1927.

` w. H. I YMAN CRYPTOGRAPHIC PERFORATOR Filed Dew. 11, 1924 W 0 5 www 0 0 @am Q m w w w a m f f, 3 f f. fw f f O/ O/W 0W O 0MM 0 0. O0 000 000 0000000000 y OOO OO O 0000 0000 O O 0000 0000 on o0 00o m nh 000 0 0 000 W K000 aP00000 0000 0000 d 0000 MJ" 0000 mw 00 00 Mw. 0000 F@.0000 0 0b w.. ,0M w w w w w 0 n 0 0 0 0 2 0 0 Hlml.I0--El-Dhlwwwwfhmlbil l0|m-|0 lmmmmllmdlolmllmoo.. 0000 0000 0000 0000 0000 0000 I 00 0 0 E .D 4.0000 50000 60000 70000.@0 0000 0J 0000. 0000 0000 0000 j M W w 4 4. 0000 0000 0000 0000 4 PM 0000 0 000 0000 0000 m w O 0n 00 00 0 0. O O 0 M w 0 0 M w w 0 .0U w w 0 00 00 0000. 0000 0000 0000 000.0V 0000 0000 0000 0000 0000 2 0000. 0 [.0000 Z0000 50000 al 0000 50000 6 0000 70000 0000 9 0000 0000 H0000 0000 0 0 0 0 0 0 0 0 0 0 0 0 u.,

Patented oer.. as, `rear. i

WALTER H. ILYMAN, orciarcaeoyrrrrnors, `irssrefnon To 'rr-rn AMERICAN Pnnro- :aaron COMPANY, or crrrcaeo, rnnrnors, n conronnfriorijor ILLINos.

i cnrrroertnr pplication `nled.i1 )ecember My invention relates to cryptographic perforators. 1 l q One of the objects of myinventionis to provide a cryptographic perfoiator which Will` enable the use of a` smaller number of punches anda `smaller sizeofselector Wheel than have heretofore been used. l

*A further object of my invention to pro-` vide a cryptographic perforator Whichvvill" produce a simplifiedv cryptogram. 1 Further objects -Will ppear from =the del` scription and claim. y

My invention `is the nature of an im! provenient of the inventions disclosed in pat` ents to'ay, No. 739,398 and No. 739,399

` The Day Patent No. 739,399shotvs a crypto` graphic perforator in `which `numbers from one up to one hundred may be indicated by the use of l1 punches and a pair of overlapping selector Wheels, each having fifteen se. lector faces. `By my improved perforator.v l accomplish a `similar 'result using only eight punches and a pair of overlapping selector Wheels, each of which may have only 1Q `se-` lector faces." Furthermore, the cryptogranr made by my improvedperforator is simpler than the cryptogram made by the perforators of the patents referred to, and the operation of my improved perforator is Vsimpler than the operation of the perforators of the pat-A ents referred to. This simplification is accomplished by a method of indicating the de.

sired number, which method comprisesmalr-` ing base perforations in the` sheet`,fassigning certain numbers to perforable `partso'f `the sheet, `which partsv have definite fp ositio With respect to thebase perforations, and perforating a plurality of suchspaces in such manner that thesumof the numbers allotted to the perforatedspaces equals `the desired number. y; W i

Figure `1 is a transverse vertical section through a' perforator on `the yline 1-1 of Fig'. 2;

`Fig. 2 i

s a longitudinal "vertical section through the perforator on the line of FiO'. 1

"Fig."3is a development vieuT showingthe four selector Wheelsstraightened out; i

Fig.` 4 is a view showingthei arrangement of thepunches;` and l f showing perforations" which erlie@ eee een @192e Y ns y c rjivionaron. 11,1924. `serial Ng. 755,183. j

` just as `effectively be utilizedV for marking numbers or?` a combination of both, ascan be readily appreciated. q The section lined cir cles indicatethe vbase punches, all four of Whiehare operated Whenever `the date i is punched. The eight punches'to theleft-fof 'the left hand pair of base punches are used to indicate the number of the month, The" eight punches bet-Ween the-two pairs of base"A punches are used to indicate the` day of the innth. The eight-punches attheright of the right hand pair of base punches'are used to indicate the number of theyear. The numbers Within the various'circlesfindicating the punches, show the number or value` {whichfis assigned to each particular punch. "The various groups of punches'ehotvn are socontrolled by the selector Wheels that the `sum of the numbers punched in eachgroup `is equal to the desirednumber.` To illustrate, it lis desiredto make aperforated.crypto-4 gram which will indicate `April 6,1924, theselector Wheels are so setthat in the month group of perforations, only the 4 punch "Will be operated ;so"that in the day group rof punches the punches 2 and4 will be operated; and so that `in the year group of punches, the punches 4 and 20Will be operated. This cryptogram is shownin Fig. `5,\in which" the base perforationsin the sheet are indicatedby circles with section lines and the significant perforations are indicated by circlessurrounding iigures. The month perforation to theleft of the left hand pair of base perforations, numbered 4 indi cates April. The two perforationsbetween the tWo pairs of basevperforationsadded together equal G, indicating the siXth-dayiof `the `month.` The tvvo perforations to the right/of the right hand pair of base perforationsadided together equal 24 indicating the year 1924. VIt Will be found thatthe punches with numbers assigned as indicated enable agselection to be made corresponding to any desired number between 1 and 100.

. Referring now to the construction of the perforatorf used` in making these cryptograms, this comprises a group of punches 10,

In oscillatable head 11,`and fourfselector s y groove. V i The sheet to be perforated is inserted be'-v tWeen the perforated platen 18 and-the lower In order toV return ythe `Wheels 12, 13, 1 4 and 15 rotatably mounted on the'head 11 for controlling the punches 10.V Each of these selector Wheels is provided With a series of groups of perforations and the punch head is then operated, certain of the punches Will be received in the perforations in kthe selector Wheel and the punches thus received YWill not be depressed and hence Will not cause any corresponding` perforation in the sheet operated on. The rest of the punches in the group controlled by this selectorwheel Will be depressed as there are noV perforations in the selector Wheel vto receive Athem and these punches which are depressed Will causecorresponding perforations in the sheet. r

Means are provided whereby `the operaltor can set all four of the selector Wheels at any desired positioncomprising a vplurality of readily insertable and ivithdraivable pins 16, one for each selector Wheel, which can be inserted into properly spaced holes in thev selector Wheels, the pinbeing then used as a handle Vto vrotate the selector Wheel.

Wheels With respect to the punch head, the latter is provided Withla transversely VeX- tending groove 17 into Which rthe controlling pins can be inserted when the Wheels have been moved tofbrin'g the pins opposite the ends of the punches. punches after they have been depressed, a perforated lifter plate 1-9 is provided through Whichthe punches extend. This lifter plate is elevated on the upward stroke` of the punch made by means of a pair of hooks 2O secured to the punch head and eX- teiiding underneath the lifter plate. The

punches are provided with enlargements or shoulders 21 engaged bythe lifter plate. Any suitable type of handle 22 maybe provided for operating the punch member which is returned by a coil compression spring 23.-

Referring now more construction of the selector AWheels' which are shown in Fig. 3, the left Yhand 'Wheel -12 used .to indicate the month has`-12 vgroups .of perforations. onel for each month. VEach ot the perforations 24 into which the control pins may be inserted is 'provided with a nuinf ber at the right to enable theV operator to select the right Oroun ofounches.` rIhis.

number does not of course correspond to the immediately adjacent .group of perfor-ations because of the fact that the perforation 24. for. the controlling. pin must be located about lnV order to ,definitely position the selector Yparticularly to thev 120O from the group of perforations which correspond to it. The .reason for `this 120o spacing Will be obvious by referring to Fig. 2,Which shows that the groove 17 in the punch head, which .receives the controlling pin, is about 120O from the groove 25 Which receives the `upper ends of the punches. Thefnumbers appearing just to the right of -the -perforations which receive the control each group indicatethatthis part of the Wheel is not perforated. As a matter of fact,r the parts 'of the Wheel indicated by the semi-circles are provided With slight depressions or pockets 26 (Fig. 1) for the purpose of receiving and centering the upper ends of the punches Whenthe punch head is depressed. The punches corresponding to these semi-circles Will be operated. Referrinp' again, particularly, to the upper group of .perforations in the 'left lhand selector Wheel, it Will be noted by referring .t'orFig i that the three semi-circles correspond to the Figs. 2,'3 and 4. The sum of these figures vis9, which is the desired number for this group. In order to avoid confusion it is Vherepointed out that the arrangement of perforations inr thc selector wheel shownV in F ig. 3 appears inverted vWith respect to the arrangement of pcrforations shown in Fig. 4.. For another example o f the arrangement in theleft hand selector' Wheel, consider the fourth grouprof p'erforations from the top7 corresponding r to the number 12, which appears in parenthesis at ythe right. By referring to Figwl, it will be seen that two semicircles in the group .under consideration. correspond to numbers 10 and 2, the sumoi" Which lis l2. i ,I The right hand vselector Wheel is similar in principle and. operation kto the one just described. The figures in parenthesis in the column at the `right of Vthe upper end of this selector Wheel indicate the valuecorresponding to the different groups ofperforations. Thus, lfor then-pp er group the value is the sum of 30 and 2 o r 32, etc.- n

This selector Wheel with its 12 groups of perforations enables ai'iydesired year to be indicatedfroin 1924 to 1935. 'y Y .A greater range v0f numbers is necessary for indicating the day ofthe month than is messer-.v ,for indicating .the inenth or year, and I accordingly iii-1d it convenieiitto provide two overlapping selector Wheels for controlling the day punches. These selector Wheels have overlapping portions, both of which overlapping `portions are provided with groups of perforations so that any particular punch Will be depressed un- 4less there are corresponding perforations to 1 receive it in both of the selector Wheels. .I

arrange the perforations in these two selector Wheels so that the left hand selector Wheel controls the punches indicated as 10, 20,V 30 and 40 in Fig. 4 and so that the right hand selector Wheel controls the punches indicated as l, 2, 3 and 4 in Fig. 4. 'Iheleft f hand selector wheel is thus in effect a tens Wheel While the right hand selector Wheel is a units Wheel..

. it is desired to indicate the` 26th.*day of the month.

This will bring the group of punch controlling openings marked cF20 in the tens `ivheel to be brought `just above the upper ends of the punches and Will bring the group of the punch controlling openingsmarked 6 in the units Wheel just above "the punches. The punch controlling group marked 20 Will causethe actuation of a single punch corresponding to the' single half circle Which corresponds to the number 20L The vother seven punches in the day i group will pass through the openings the` tens orf selector wheel buttivo of these will be engaged by'the units selectorxvheel, causing the punches `which indicate 2 and 4 to be operated.Y Thus .altogether 3 punches will be operated by means ofstlie il two selector Wheels and the sum of the cor# responding numbers be 26.

Attention is called to the fact `that some of the punches couldbe eliminated so farV as merely dating perforations are concerned.`

For instance, in the group of punches for Assume for instance that 1 indicating the number of the month, the punches corresponding fto 20, 30 and 40 could be eliminated. In the group of punches for indicating the dayof the month, the punch corresponding to No. 40 could be omitted and by combining the punches cor- `responding to l0 and 20 to make 30 both punches 30 and 40 could be omitted. In the group of punches for indicating the year, the punch corresponding to 40 could be `omitted as there is no corresponding pin receiving opening in the selector Wheel. Furthermore, by combining the punches 10 and 20, both of the punches corresponding to 30 `and 40 could be omitted. This would enable the dating to be done by the use of only 17 punches. I construction is considerably simpler than the construction shown in the prior patents referred to in that a much smaller number f of punches may be used. and also a smaller` number of faces or groups of punch control-` "ling openings in the selector Wheels.

It will be seen that the present Having thus described my invention, what I claim as new and desire to secure by Letters Patent of theU. S. is

A cryptographic perforating machine' comprising base punches, which when operated punch base perforations in a sheet, a group of spaced significant punches, each of which when operated, makes a perforation` in the 'sheet having a definite relative posi tion with respect t-o a base perforation, to

`which relative position a definite number is assigned, and a series of selective devices for lcontrollingfsaidpunches, any one of which "devices may be selected by the operator to controltlie punches to cause them to indicate a desired number, each of a'number of l said selective devices comprising means for causing .the operation vof the base punches,

and comprising also means for causing the p operation of a `plurality `oit' additional punches to make signiticant perforations,

the sum of Whosecorresponding numbers equals the desired number.

In Witness Where-of, I have hereunto subscribed my name.

WALTER H. LYMN; 

